Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1100-0111-0001-0001 pattern in any orientation.
A147285
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1100-0111-0001-0001 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =7a(6) =15a(7) =31a(8) =117a(9) =707a(10) =4175a(11) =24315a(12) =175637
External references
- oeis: A147285